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amazon.com 216.73.216.59 Your IP DNS Lookup DNS Propagation Checker SPF Record Lookup A Record Lookup AAAA Record Lookup CNAME Record Lookup TXT Record Lookup MX Record Lookup

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207.172.157.204 Reverse DNS

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This IP has multiple PTR records

207-172-157-204.in-addr.mail.rcn.net
lists.lnh.mail.rcn.net